Comparative study of the morphological and anatomical features of Lindernia procumbens in different ecological environments (Linderniaceae)

doi:10.11686/cyxb20140228

Abstract

Abstract: The morphology and anatomy of Lindernia procumbens were deeply studied using the GMA method for the first time. The results show the seedling development of the species has the characteristics of aquatic plants: the seed and seedling submerged in water could germinate and develop, the hypocotyl hairs occur on the collet, the radicle development is retardate. The vegetative organ of the mature plant of the species has the characteristics which occur in terrestrial plants and aquatic: the terrestrial plant and aerial parts of the hygrophilous plant have thick cuticule, developed mechanical tissues and aerenchymaes. However, the submerged plants and submerged parts of hygrophilous plants are with the undeveloped mechanical tissues and cuticule, very developed aerenchymaes. The reproductive organs: L. procumbens has two types of flowers, chasmogamous and cleistogamous. Both occur in the terrestrial and the hygrophilous plants, but the submerged plants only have cleistogamous flowers, which make the species could produce seeds normally. In addition, the species has a free central placenta. This study show the variation in shapes and structures (including seeding development, vegetative and reproductive organs of L. procumbens) in the different ecological environments for the first time, perfecting the morphological study and providing the morphological evidence for the systematic study of the family Linderniaceae.

CLC Number:

Q944.5

ZHANG Xin-xin, LIU Mei, CHENG Xin-yu, SHI Chuan-qi, RU Jian, SUN Yan. Comparative study of the morphological and anatomical features of Lindernia procumbens in different ecological environments (Linderniaceae)[J]. Acta Prataculturae Sinica, 2014, 23(2): 235-242.

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